Lock



July 7, 1931. 5, SEGAL 3,812,988

LOCK

Filed March 29, 1928 2 Sheets-Sheet l IN V EN TOR. Samuel Sega],

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S. SEGAL LOCK Filed March 29, 1928 2 Sheets-Sheet 2 IN V EN TOR. 5' amuel Sega],

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Patented July 7, 1931 PATENT OFFICE SAMUEL SEGAL, or NEW YORK, N. Y.

LOCK

Application filed March 29, 1928. Serial No. 265,580.

This invention relates to a functionally and structurally improved lock as well as a meth d of manufacturing the same;

It is an object of ,the invention to provide a device of this character, the parts of which will be relatively few in number and individually rugged and simple in construction, these parts being capable of ready assemblage, by

relatively unskilled labor, to produce a lock which will operate over long periods of time with freedom from mechanical difficulty, and

which may be produced at a comparatively nominal figure.

A further object of the invention resides in the construction of'a lock, the parts of which will cooperate in an improved manner. With these and further objects in mind, reference is had to the attached sheet of drawings in which several embodiments of the invention have been illustrated, and in which: Figure 1 is a face view of the casing blank as died out;

Fig. 2 is a perspective view of the casing blank after the same has been subjected to various shaping manipulations;

, Fig. 3 is a view similar to Fig. 1, but showing a supporting spider;

Fi 4 is a view similar to Fig. 2, but showing the spider after the parts of the same have been bent into shape;

Fig. 5 is a face view of a spider blank of an alternative form which may be applied Fig. 6 is a perspective view of a-bolt constructed according to the present invention;

Figs. 7 and 8 are similar views of the actuating mechanism;

Flg. 9 is also a perspective view but showing a keeper constructed within the terms of the resent invention;

Fig. 10 is a face view of an assembled lock,

and

Fig. 11 is an edge view of a bolt of a slightly different type than that shown in Fig; 6.

By means of the present invention, it is roposed to provide a novel method of manuacture of lock parts so that the cost of such manufacture may be reduced to a minimum.

In the present exemplification, a mechanism has been shown which is of thedead 50 lock type. In other words, a lock is probolt or screw openings 17, a marginal part 18,

and an extended central portion 19. The ends of the marginal part are projected in the form of tongues 20 and the body of the projected central portion 19 is formed with slots 21 for the accommodation of keeper portions.

Thus, with a blank of this nature placed in a suitable machine, it is obvious that the marginal portion may be bent to extend at right angles to the body of the blank, and thus the extended portion may be bent to have its upper and lower edges in contact with the edges of the tongues 20, the outer edge of this extended portion lying adjacent the forward edge of the marginal part 18 and, in fact, extending beyond the side edge of this part as has been indicated at 22 in Fig. 2.

Thus, a casing is provided as has been shown, in the figure last named, which includes a receptacle and body portion enclosed by a side wall and, furthermore, provided with an extended housing portion having openings furnished by the slots 21.

It will be apparent to those skilled in the art that if the casing blank be formed of brass, the securing of the adjacentinitially free edges of the. adjacent casing parts against movement with respect to each other, may be assured as by brazing. Likewise, if

other metal is employed the .adjacent edges may be secured by welding or in any other suitable manner.

Disposed within the casing there is provided a spider or mounting frame which, in the form shown in Figs. 3 and 4, may include a body embracing a pair of rearwardly flared legs 23 and forwardly flared legs 24. Between the latter pair of legs the blank is formed with an opening 25 and may be formed with slits 26, the opening 25 serving in a manner hereinafter brought out as a track portion and the blank having a 100 somewhat extended part 27 provided beyond the opening. Parts of this blank are shaped so that after the ends of the legs 23-24 are bent at right angles to the body to form foot portions 28 as has been shown in Fig. 4, .the spider or frame will fit readily within the casin the foot portions bracing against the side ange or wall of the latter and being-- for a purpose hereinafter specifiedof preferably less height than thethickness of the casing.

At this time it will also be observed that by virtue of the slits 26 the rear edge of the blank opening 25 may be extended inwardly to form a ledge portion 29, as shown in Fig; 4, and that the blank is furthermore formed with tongues 30 which, when bent to extend above the plane of the blank body, act as stops.

The blank by means of which the bolt is provided has not been shown, it being felt that to do so would be mere surplusage. However, with reference to the finished bolt as in Fig. 6, it will be apparent that this blank includes, as has been indicated in dotted lines, a plate having portions bent upon itself to provide a main or body part 31 of double thickness, arms 32 extending from such part, and forward portions curved upon themselves to furnish bolts 33. However, and as has been shown in Fig. 11, in lieu of the curved portions providing the bolts there may simply be afiixed, one to each of the arms 32, a slotted plug 34, this obviously serving as a bolt portion.

After these parts have been provided, it is obvious that a shaft or sleeve 35 may be extended through the opening 16 of the case and the corresponding and aligned opening of the mounting-frame or spider. Secured to the outer end of this sleeve may be a knob or a member to cooperate with the tail-piece of a lock mechanism. This construction has not been shown in detail for the reason that it is well known in all types of locks. However,

37 311d, it will be apparent, after the bolt' body 31 is disposed in the trackway 25, that if mechanism of proper type is employed a turning of the shaft or sleeve 35 will result in a projection or retraction of the bolt.

A desirable form of mechanism within the scope of the present invention is provided by disposing the pin 38 in an opening formed in the frame blank to provide a pivot. Mounted upon this pivot is a lever 39 of the type shown in Fig. 8 and which lever is formed preferably of the same gauge and type of metal as that which provides the casing and frame. In blanking out this lever, slots or forked portions 40 are formed adjacent the opposite ends thereof and sutficient material is left at the base of one of these portions to afiord an upstanding lug 41 provided with a transverse opening 42. A further element built up of the same gauge metal is provided as shown in Fi 7 and includes a stem 43, and a head 44, having a notched edge; this head being built up preferably by an additional layer 45 of metal which is'likewise notched, the base of the latter notch, however, extending beyond the base of the notch formed in the head 44. The stem 43 is slidably'disposed through the opening of the lug 41 and a spring is interposed between the head and the lug so that the former is normally pressed outwardly. The headed pin 37 of the crank is arranged to have its shank lie within the base of the notch of layer 45, its head bearing against the edge of the notch in the layer 44, as has been shown in Fig. 10. i f

Thus, it will be apparent that with the parts so assembled and the crank being ro-' tated, the lever will be rocked while the pin 37 rides within the rearmost notch 40. Incident to such rocking, the bolt will be moved in a plane transversely of the casing, and to have its ends extend across the slots of the latter, it being patent that the spring will serve to retain the bolt in one of its two extreme positions, and that the crank will be limited to movement beyond proper points by virture of the stops provided by the up-struck portions 30. It will also be apparent that the connection between the bolt and the lever is effected as, for example, by means of a raised portion 46 formed on thebolt body plate of less height than the width of the case,

a cover plate (no: shown) may rest upon .the same without danger of displacement or contact with the lock mechanism, it being understood that, if desired, the cover plate may be retained additionally by a stud 46' extending within the casing, and that the projecting edge 22 may additionally cooperate with the cover plate to prevent displacement thereof. Incidentally, this edge portionmay serve in certain aspects to cooperate with a portion of the closure to which the lock is applied in.

order to provide a position-indicating element or guide. I

With a view to providing akeeper, it is preferred that, according to the present invention, a strip of metal be employed of the same character and gauge as that used in the bolt, and this strip be bent as shown in Fig. 9 to form keeper portions 47 provided with openings for the reception of the bolt. A strikeand retaining-plate for the keeper is conveniently furnished by utilizing a sheet of metal 48 bent in the form'of a right angle section, one arm of which is formed with slots 49 for the passage ofthe keeper portions 47,

and the end edges of this arm being convenwhich the keeper is associated and through which screws, common to both, may pass in order to retain the elements in a simple relationship.

Finally, if a mounting plate or frame, different from that shown in Figs. 3 and 4, is desired, it will be obvious thatsuch an element may be provided according to the present invention by simply striking out a plate 53 of a shape such that it may fit within the casing and furnished with openings to align with screw holes and the sleeve or shaft opening of the casing. This plate has portions 54 which may be struck outwardly to provide in aggregate a cover rest as well as outstruck portions 55 furnishing stop elements for the crank. I

By means of the present invention, it will be apparent that a form of construction and method of manufacture are devised which will permit of the economical construction of a lock of extremely simple but effective type in which, among others specifically aforereferred to, the objects of the present invention are achieved, it being understood, however, that numerous changes of construction and rearrangement of the parts might be resorted to-without in the slightest departing from the spirit of the invention as defined by the claims.

In connection with the foregoing, it will be understood that while a lock has herein been illustrated, which is particularly advantageous and for which the present method and structure have been particularly devised,

that it is in many aspects immaterial what type of lock the present invention is adapte to.

Having described my invention what 1 claim as new and desire to secure by Letters Patent is:

1. A lock including a casing, a frame dissheet of substantially constant gauge metal formed with an opening providing a track way for a bolt, a bolt mounted upon said trackway, means for moving said bolt, and outstruck portions forming a part of said sheet and constituting stop means, and limiting the movement of said bolt actuating means.

2. A lock including a casing, a frame disposed within said casing and comprising a sheet of substantially constant gauge metal formedwith an opening providing a trackway for a bolt, a bolt mounted upon said trackway, means for moving said bolt, and outstanding portions forming a part of said frame and providing a rest for a cover plate to close said lock casing.

3. A look including a casing, a frame disposed within said casing and comprising a sheet of substantially constant gauge metal formed with an opening providing a trackway for a bolt, a bolt mounted upon said trackway, means for moving said bolt, outstanding portions forming a part of said frame and providing a rest for a cover plate to close said lock casing, and a stud extending outwardly from said casing and through an opening in said frame for retaining such cover plate.

4. A lock including a casing, a crank thereon, a bolt comprising a body and a head, said bolt being slidably mounted within said casing, extensions associated with said bolt body and said crank, a lever swingingly mounted within said casing and formed with forked end portionsto receive said extensions, and

means mounted by said lever and bearing way for a bolt, a bolt mounted upon said tra-ckway and comprising a sheet of substantially constant gauge metal, head portions forming a part of said bolt and comprising turned-back portions of said sheet metal, means for moving said bolt, and outstruck portions forming a part of said first named sheet and constituting stop means for limiting the movement of said bolt-actuating means.

In testimony whereof I affix my signature.

SAMUEL SEGAL. 

